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POAccessing POST variables in Mongoose model
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copied!<p>Using a MEAN stack (MongoDB, ExpressJS, AngularJS, and NodeJS) with Mongoose, I'm setting up a simple registration form that will include email address and password fields, among others. I'm including a password confirmation field to ensure users know what they've typed before completing registration. Pretty typical.</p> <p>However, I can't figure out how to access posted form variables in the model if they're not included in the schema. I don't want to write the password confirmation field's data to the DB, just use it for validation. I have no doubt it's a trivial issue, but everything I've found by searching has used fields included in the schema, which I've got a handle on.</p> <p>I'm assuming I need to write a schema method, and maybe a virtual, but how do I get to the value of the confirmPassword field? If someone brighter than yours truly would point me in the right direction, I'd be much obliged. Here's what I have so far (note: I omitted other controller methods, dependency declarations, etc. for brevity):</p> <p><strong>signup.jade (form)</strong></p> <pre><code> form.signup(action="/users", method="post") .control-group label.control-label(for='email') Email .controls input#email(type='text', name="email", placeholder='Email', value=user.email) .control-group label.control-label(for='password') Password .controls input#password(type='password', name="password", placeholder='Password') .control-group label.control-label(for='confirmPassword') Confirm Password .controls input#password(type='password', name="confirmPassword", placeholder='Confirm Password') //- Birthdate include ../shared/birthdate .form-actions button.btn.btn-primary(type='submit') Sign Up &nbsp; | or&nbsp; a.show-login(href="/login") Log In </code></pre> <p><strong>users.js (controller)</strong></p> <pre><code>/** * Create user */ exports.create = function(req, res) { var user = new User(req.body); user.provider = 'local'; user.save(function(err) { if (err) { return res.render('users/signup', { errors: err.errors, user: user }); } req.logIn(user, function(err) { if (err) return next(err); return res.redirect('/'); }); }); }; </code></pre> <p><strong>user.js (model)</strong></p> <pre><code>/** * Module dependencies. */ var mongoose = require('mongoose'), Schema = mongoose.Schema, crypto = require('crypto'), _ = require('underscore'); /** * User Schema */ var UserSchema = new Schema({ email: String, hashed_password: String, salt: String }); /** * Virtuals */ UserSchema.virtual('password').set(function(password) { this._password = password; this.salt = this.makeSalt(); this.hashed_password = this.encryptPassword(password); }).get(function() { return this._password; }); /** * Validations */ var validatePresenceOf = function(value) { return value && value.length; }; // the below validations only apply if you are signing up traditionally (e.g. not fb, etc) UserSchema.path('email').validate(function(email) { return email.length; }, 'Email cannot be blank'); UserSchema.path('hashed_password').validate(function(hashed_password) { return hashed_password.length; }, 'Password cannot be blank'); /** * Pre-save hook */ UserSchema.pre('save', function(next) { if (!this.isNew) return next(); if (!validatePresenceOf(this.password)) next(new Error('Invalid password')); else next(); }); /** * Methods */ UserSchema.methods = { /** * Authenticate - check if the passwords are the same * * @param {String} plainText * @return {Boolean} * @api public */ authenticate: function(plainText) { return this.encryptPassword(plainText) === this.hashed_password; }, /** * Make salt * * @return {String} * @api public */ makeSalt: function() { return Math.round((new Date().valueOf() * Math.random())) + ''; }, /** * Encrypt password * * @param {String} password * @return {String} * @api public */ encryptPassword: function(password) { if (!password) return ''; return crypto.createHmac('sha1', this.salt).update(password).digest('hex'); } }; mongoose.model('User', UserSchema); </code></pre>

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